Physics

Problem

A moon of Jupiter, call it Moon X, orbits at a radius of

4.0\times10^{8}\,\text{m}

and takes

1.77\,\text{days}

to complete one revolution. (i) A newly discovered moon, Moon Y, orbits at a radius of

1.0\times10^{9}\,\text{m}

. Calculate its orbital period in days. (ii) Using your result from part (i), find the average orbital speed of Moon Y in

\text{km\,s}^{-1}

(give your answer to two significant figures). a. (i) Orbital period of Moon Y b. (ii) Average orbital speed of Moon Y